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In Virtual Machine Manager admin console, I used the 'New virtual machine' wizard and created a machine from an existing template.

When I got to the Configure Hardware step, I selected the primary hard disk (which is a dynamic) disk and tried to increase it's maximum size, but this control is disabled so I can't increase it.

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It's not big enough for my purposes. how do I increase the maximum size of the hard-disk?

Thanks.

Edit: I am able to add a second hard disk of a size I specify. That's not useful though as I'm trying to install some software, some of which insists on being on drive C.

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2 Answers 2

Virtual disks cannot be edited when the virtual machine is running or in a saved state. Stop the virtual machine, then try again.

A virtual disk also cannot be edited when any checkpoints exist. You will have to delete all existing checkpoints to be able to resize the disk. However, the Channel drop-down list is only disabled (as in the above screenshot) when the VM is running.

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System drives cannot be increased in size this way with basic operating system tools. You can, however, Get Creative. One approach is to use this utility: http://h0bbel.p0ggel.org/howto-using-extpart-to-expand-windows-server-2003-vm-boot-volume. Says it's for Dell, but I've used it on VMs before.

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Looks like that might help people using VMWare with a 2003 32 bit machine. I'm using Virtual Machine Manager though and, I didn't mention it before, but my VM has a Windows7 64 bit OS. –  Scott Langham Oct 6 '10 at 13:56

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